<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML4.01 Transitional//EN"  
 "http://www.w3.org/TR/html4/loose.dtd">  
<html>  
<head>  
<meta http-equiv="Content-Type"content="text/html; charset=utf-8">  
<title>获取本周、上一周和下一周周一至周日时间</title>  
</head>  
<script language="javascript">  
function setWeekTime(weekTime){  //本方法未检出错误，可用！#@！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！
    var time=new Array();   
    if(weekTime=='last'){   
        time=getLastWeekDate();  
    }  
    if(weekTime=='this'){   
        time=getThisWeekDate();  
    }  
    if(weekTime=='next'){   
        time=getNextWeekDate();  
    }  
    document.getElementById("monday").value=time[0];  
    document.getElementById("tuesday").value=time[1];  
    document.getElementById("wednesday").value=time[2];  
    document.getElementById("thursday").value=time[3];  
    document.getElementById("friday").value=time[4];  
    document.getElementById("saturday").value=time[5];  
    document.getElementById("sunday").value=time[6];  
}   
//获得本周的周一和周末  
function getThisWeekDate(){  
    var now = new Date();  
    var week=new Array();  
    var currentWeek = now.getDay();  
    if ( currentWeek == 0 ){  
        currentWeek = 7;  
    }  
   
    var monday = now.getTime() -(currentWeek-1)*24*60*60*1000;  //星期一  
    var tuesday  =now.getTime() - (currentWeek-2)*24*60*60*1000; //星期二  
    var wednesday = now.getTime() -(currentWeek-3)*24*60*60*1000; //星期三  
    var thursday = now.getTime() -(currentWeek-4)*24*60*60*1000; //星期四  
    var friday  =now.getTime() - (currentWeek-5)*24*60*60*1000; //星期五  
    var saturday = now.getTime() -(currentWeek-6)*24*60*60*1000; //星期六  
    var sunday = now.getTime() +(7-currentWeek)*24*60*60*1000;     //星期日  
   
    week=weektoday(monday,tuesday,wednesday,thursday,friday,saturday,sunday);  
   
    return week;   
}  
//获得上周的周一和周末  
function getLastWeekDate(){  
    var now = new Date();  
    var week=new Array();  
    var currentWeek = now.getDay();  
   
    if ( currentWeek == 0 ){  
    currentWeek = 7;  
    }  
    var monday  =now.getTime() - (currentWeek+6)*24*60*60*1000; //星期一  
    var tuesday  =now.getTime() - (currentWeek+5)*24*60*60*1000; //星期二  
    var wednesday = now.getTime() -(currentWeek+4)*24*60*60*1000; //星期三  
    var thursday = now.getTime() -(currentWeek+3)*24*60*60*1000; //星期四  
    var friday  =now.getTime() - (currentWeek+2)*24*60*60*1000; //星期五  
    var saturday = now.getTime() -(currentWeek+1)*24*60*60*1000; //星期六  
    var sunday  =now.getTime() -(currentWeek)*24*60*60*1000;  //星期日  
   
    week=weektoday(monday,tuesday,wednesday,thursday,friday,saturday,sunday);  
   
    return week;   
   
}  
//获得下周的周一至周末  
function getNextWeekDate(){  
    var now = new Date();  
    var week=new Array();  
   
    var currentWeek = now.getDay();  
   
    if ( currentWeek == 0 ) {  
        currentWeek = 7;  
    }  
    var monday = now.getTime() -(currentWeek-8)*24*60*60*1000;  //星期一  
    var tuesday= now.getTime() -(currentWeek-9)*24*60*60*1000;  //星期二  
    var wednesday = now.getTime() -(currentWeek-10)*24*60*60*1000; //星期三  
    var thursday = now.getTime() -(currentWeek-11)*24*60*60*1000; //星期四  
    var friday= now.getTime() -(currentWeek-12)*24*60*60*1000; //星期五  
    var saturday = now.getTime() -(currentWeek-13)*24*60*60*1000; //星期六  
    var sunday = now.getTime() -(currentWeek-14)*24*60*60*1000; //星期日  
   
   
    week=weektoday(monday,tuesday,wednesday,thursday,friday,saturday,sunday);  
   
    return week;   
   
}  
function weektoday(monday,tuesday,wednesday,thursday,friday,saturday,sunday){  
   
    var days=new Array();  
   
    var new_monday = changeTime(new Date(monday));//星期一  
    var new_tuesday= changeTime(new Date(tuesday)); //星期二  
    var new_wednesday = changeTime(new Date(wednesday)); //星期三  
    var new_thursday = changeTime(new Date(thursday)); //星期四  
    var new_friday= changeTime(new Date(friday)); //星期五  
    var new_saturday = changeTime(new Date(saturday));//星期六  
    var new_sunday = changeTime(new Date(sunday));//星期日  
   
    days[0]=new_monday;  
    days[1]=new_tuesday;  
    days[2]=new_wednesday;  
    days[3]=new_thursday;  
    days[4]=new_friday;  
    days[5]=new_saturday;  
    days[6]=new_sunday;  
   
    return days;  
   
}  
   
function changeTime(str){  
    var fullDate = "";  
    var tmpMonth = "";  
    var tmpDay = "";  
    var tmpYear = "";  
    tmpMonth = str.getMonth() + 1;  
    if(tmpMonth < 10){  
        tmpMonth = "0" + tmpMonth;  
    }  
    tmpDay = str.getDate();  
    if(tmpDay < 10){  
        tmpDay = "0" + tmpDay;  
    }  
    tmpYear = str.getFullYear();  
    return(tmpMonth+"/"+tmpDay+"/"+tmpYear);  
}   
   
function getDayOfWeek(){  
    var myDate = document.getElementById("mydate").value;  
    var temp = document.getElementById("tmp").value;      
    var tmpMonth = "";  
    var tmpDay = "";  
    var tmpYear = "";  
    tmpMonth = myDate.substring(0,2);  
    tmpday = myDate.substring(3,5);  
    tmpYear = myDate.substring(6,10);  
    var now = new Date(tmpYear,tmpMonth-1,tmpday);    
    var currentWeek = now.getDay();   
    if ( currentWeek == 0 ) {  
        currentWeek = 7;  
    }  
    var weekDay;  
    temptemp = temp.toUpperCase();  
    if (temp.indexOf("M")==0) {  
        weekDay = 1;  
    } else if (temp.indexOf("T")==0) {  
        weekDay = 2;  
    } else if (temp.indexOf("M")==0) {  
        weekDay = 3;  
    } else if (temp.indexOf("H")==0) {  
        weekDay = 4;  
    } else if (temp.indexOf("F")==0) {  
        weekDay = 5;  
    } else if (temp.indexOf("S")==0) {  
        weekDay = 6;  
    } else if (temp.indexOf("U")==0) {  
        weekDay = 7;  
    }  
    var weeks = temp.substring(1);  
    var days = weeks * 7 + weekDay;  
   
    var weekday = now.getTime() -(currentWeek-days)*24*60*60*1000;   
    var formatDate = new Date(weekday);  
    document.getElementById("newdate").value=changeTime(formatDate);  
}  
   
function getNextDay(){  
    var strDate = document.getElementById("tmpdate").value;  
    var temp = document.getElementById("days").value;     
    if("" == strDate || "" == temp){  
        return "";  
    } else {  
        var tmpMonth = "";  
        var tmpDay = "";  
        var tmpYear = "";  
        tmpMonth = strDate.substring(0,2);  
        tmpday = strDate.substring(3,5);  
        tmpYear = strDate.substring(6,10);  
        var date = new Date(tmpYear,tmpMonth-1,tmpday);  
        //alert(date);  
        temp = new Number(temp);  
        date.setDate(date.getDate() + temp);  
        //alert(date);  
        tempStr = changeTime(date);  
        document.getElementById("newdate1").value=tempStr;  
    }  
}  
</script>  
<body>  
<form name="form1" id="form1">  
  <table>  
    <tr>  
      <td>星期一</td>  
      <td><input type="text" value="" name="monday" id="monday"></td>  
      <td>星期二</td>  
      <td><input type="text" value="" name="tuesday" id="tuesday"></td>  
      <td>星期三</td>  
      <td><input type="text" value="" name="wednesday" id="wednesday"></td>  
    </tr>  
    <tr>  
      <td>星期四</td>  
      <td><input type="text" value="" name="thursday" id="thursday"></td>  
      <td>星期五</td>  
      <td><input type="text" value="" name="friday" id="friday"></td>  
      <td>星期六</td>  
      <td><input type="text" value="" name="saturday" id="saturday"></td>  
    </tr>  
    <tr>  
      <td>星期日</td>  
      <td><input type="text" value="" name="sunday" id="sunday"></td>  
    </tr>  
  </table>  
  <table>  
    <tr>  
      <td><input type="button" value="本周" onClick="setWeekTime('this')"></td>  
      <td><input type="button" value="上周" onClick="setWeekTime('last')"></td>  
      <td><input type="button" value="下周" onClick="setWeekTime('next')"></td>  
    </tr>  
  </table>  
   
  <table>  
  <tr>  
      <td colspan="4">根据时间日期获下一个周几的时间<br>  
      第一个框是输入日期；<br>  
      第二个框输入:<br>  
      M (Mon) T (Tue) W (Wed) H (Thu) F (Fri) S (Sat) U (Sun)<br>  
M1代表一周后的周一，M2两周后的周一</td>  
    </tr>  
    <tr>  
      <td><input type="text" value="07/22/2010" name="mydate" id="mydate"></td>  
      <td><input type="text" value="m1" name="tmp" id="tmp"></td>  
      <td><input type="text" value="" name="newdate" id="newdate"></td>  
      <td><input type="button" value="获得时间" onClick="getDayOfWeek()"></td>  
    </tr>  
  </table>  
   
  <table>  
  <tr>  
      <td colspan="4">根据时间日期获取几天后的日期<br>  
      第一个框是输入日期；<br>  
      第二个框输入一个数字，表示几天后</td>  
    </tr>  
    <tr>  
      <td><input type="text" value="07/22/2010" name="tmpdate" id="tmpdate"></td>  
      <td><input type="text" value="6" name="days" id="days"></td>  
      <td><input type="text" value="" name="newdate1" id="newdate1"></td>  
      <td><input type="button" value="获得时间" onClick="getNextDay()"></td>  
    </tr>  
  </table>  
   
</form>  
</body>  
</html>  